Go to Post Looks very well designed. Now where is the "export to reality" button in the CAD software? (I have been looking for it for weeks). - sanddrag [more]
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Unread 12-03-2016, 22:38
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virtuald virtuald is offline
RobotPy Guy
AKA: Dustin Spicuzza
FRC #1418 (), FRC #1973, FRC #4796, FRC #6367 ()
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Join Date: Dec 2008
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mjpg-streamer now with OpenCV input plugin (+filtering)

I'll expand on this later (and maybe even some documentation...), but for now know that you can use mjpg-streamer with OpenCV to write simple little filter plugins that can process the image from the webcam, and change what is streamed out via HTTP. You can install the mjpg-streamer-cv or mjpg-streamer-py packages using the instructions on our github repo.

We used it on our robot today with a python script to do image processing and networktables operations (Lifecam 3000, 320x240, 15fps, 30 quality), and it seemed to be about 20% CPU usage. Not too shabby.

In theory, you could use this on a RPi or other platform too, as I've pushed the changes (plus some significant build system improvements) to mjpg-streamer upstream.
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Maintainer of RobotPy - Python for FRC
Creator of pyfrc (Robot Simulator + utilities for Python) and pynetworktables/pynetworktables2js (NetworkTables for Python & Javascript)

2017 Season: Teams #1973, #4796, #6369
Team #1418 (remote mentor): Newton Quarterfinalists, 2016 Chesapeake District Champion, 2x Innovation in Control award, 2x district event winner
Team #1418: 2015 DC Regional Innovation In Control Award, #2 seed; 2014 VA Industrial Design Award; 2014 Finalists in DC & VA
Team #2423: 2012 & 2013 Boston Regional Innovation in Control Award


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Last edited by virtuald : 12-03-2016 at 22:41.
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